Moul Falls, Waterfall in Wells Gray Provincial Park, British Columbia, Canada.

Moul Falls is a waterfall on Grouse Creek in Wells Gray Provincial Park, east-central British Columbia. The creek drops about 35 metres in a straight, unbroken fall, the third highest in the park, after flowing 18 km from snowmelt, a lake and springs between Trophy Mountain and Table Mountain. A narrow canyon funnels the creek to the brink.

The waterfall was named after a man who settled near the falls around 1915. He later left the area to serve in a major military conflict.

The falls and Grouse Creek were called Moul from the 1930s, after homesteader George William Moul, who took land east of the falls in 1915. The creek's earlier name, Grouse Creek, came from the blue grouse once plentiful in these forests; a 1991 ruling restored it for the creek while the falls kept Moul.

The trail to the waterfall is several kilometers long and takes roughly two hours to walk both directions. The path involves some elevation change but is well-marked and manageable for most visitors with moderate fitness.

A natural cavern behind the waterfall allows visitors to walk completely behind the water column during certain seasons. This hidden passageway offers an unusual viewpoint that few waterfalls provide.